Machine for forming metal blanks



E. J. PAQUE. MACHINE FOR FORMING METAL BLANKS.

. APPLICATION FILED NOV. 17, 919- 1,374:,223. Patented Apr., 12, 1921.

2 SHEETS-SHEET I.

E. 1., PAQUE.

'MACHINE FOR FORMING METAL BLANKS. APPLICATION HLED NOV. 17, 1-919.

2 SHEETSSHEET 2.

W @TbR/YEV 7 Patentd Apr. 12, 1921.

UNITED STATES PEENT OFFICE.

EDWARD J. PAQUE, or CINCINNATI, oiIIo, ASSIGN'OR TO THE roLLAK STEELCOM- PANY, on CINCINNATI, OHIO, A CORPORATION or OHIO.

MACHINE FOR FORMING METAL BLANKS.

Specification of Letters Patent.

Patented Apr. 12, 1921.

Application filed November 1'7, 1919. Serial No. 338,577.

To all whom it may concern Be it known that I, EDWARD J. PAQUE, acitizen of the United States of America, and a resident of Cincinnati,in the county of Hamilton and State of Ohio, have invented a new anduseful Improvement in Machines for Forming Metal Blanks, of which thefollowing is a specification.

An object of my invention is a machine for forming metal blanks, whichenhances the character of the metal, and produces well-trimmed blanks.

Another object of my invention is to produce a machine of simplifiedconstruction for making metal blanks.

These and other objects are attained by the means described in thespecification and illustrated in the accompanying drawings in Figure 1,is a front elevation of a machine embodying my invention, parts thereofbeing removed to expose the parts in the rear of them.

Fig. 2, is a detail view partly in section and partly in front elevationof the dies and punches of my machine.

Fig. 3, is a detail View partly in front ole-- vation and partly insection, and upon an enlarged scale of one of the dies of my machine.

Fig. 4-, is a view similar to Fig. 3, of the other die of my machine.

The machine embodying my invention comprises a die A and a hydraulicpunch B, which cooperate in removing a central plug from the circulardisk to form a ring blank, and a die D and a punch E which cooperate inpressing from the ring blank a ring F of more finished construction.

This machine is intended to be used in forming rings for the manufactureof ball races, etc. These rings have heretofore been forged. When themetal is'cut, a steady pressure is exerted upon the metal, whereby thecharacter of the metal is enhanced in that the grain is refined and thestrength of the metal is increased.

which forms a way along which the blanks are moved from the die A to thedie D.

Die A has a central opening a substantially of the diameter of the punchB and surrounded with cutting edges. In the base is an opening a inalinement with the opening 01?, for the removal of the plug 72. which isout from the disk H by the die and punch A and B. Die D has a centralopening (5 of a diameter slightly less than that of the ring which hasbeen formed by the die and punch A and B, and has cutting edgessurrounding this opening. Punch E has a tapered end 6, the lower end ofwhich is of a diameter slightly less than the hole in the ring and isadapted to center the ring upon the die D.

In operation a metal disk H is placed upon the die A, and a ring II,which has been previously formed by the die and punch A and B, is placedon the die D, then the head G is lowered by hydraulic pressure, thepunch 13 presses the plug it from the disk H. and the punch E pressesthe ring F from the ring II. Upon the return of the head G, the ring II,which is formed from the disk II, is moved along the way a to punch E,and another disk II is placed on die A. The plug it and the ring F beingremoved from the table, the step previously described is repeated.

What I claim is 1. In a machine of the character described thecombination of a die, a hydraulic punch adapted to cooperate with thedie for removing the center from a disk to form a ring, 'and a seconddie, a hydraulic punch having a tapered end adapted to be projectedthrough the center of the ring and to center the aforesaid ring upon thesecond die, and to cut a ring from the center thereof.

2. In a machine of the character described the combination of a die, apunch adapted to cotiperate with the diefo-r removing the center from adisk to form a ring, a second die, a punch having a tapered end adaptedto be projected through the center of the ring and to center theaforesaid ring upon the second die, and to cut a ring from the centerthereof, and a hydraulic press adapted to actuate the punches.

In testimony whereof, I have hereunto subscribed my name this 12th dayof No-

